Thermal oxidation study on lead-free solders of Sn-Ag-Cu and Sn-Ag-Cu-Ge

被引:27
作者
Cho, SW [1 ]
Han, K [1 ]
Yi, YJ [1 ]
Kang, SJ [1 ]
Yoo, KH [1 ]
Jeong, K [1 ]
Whang, CN [1 ]
机构
[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea
关键词
D O I
10.1002/adem.200500188
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A package-level reliability test using a solder ball of a Sn-Ag-Cu-Ge alloy, was investigated. After using a lead-free solder in the manufacturing process, the discoloring problem arises after many times in the reflow process. The surface oxidation of the lead-free solders were investigated using X-ray photoelectron spectroscopy (XPS). The results show that Sn-Ag-Cu-Ge alloy is a good candidate to solve the oxidation problem and it is important to know the thermal oxidation mechanism and characteristics of the Pb-free solders.
引用
收藏
页码:111 / 114
页数:4
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